Aerometers; Hygrometers; Air analysis apparatus; Air filters for automation equipment, namely, computers and copier machines; Alarms for the detection of inflammable gases; Downloadable computer application software for mobile phones, namely, software for Controlling small home appliances; Dust masks; Dust measuring apparatus; Filters for non-medical respiratory masks; Gas masks; Gas testing instruments; Infrared detection apparatus; Temperature indicators; Workmen's protective face shields